KL 1292 then BA 8452 at Schiphol
Billund → Amsterdam → London City
Timetable, Amsterdam time
11:35KL 1292 from Billund at the gate
11:30BA 8452 to London City leaves the gate
23 h 55 apart on the timetable, overnight
BA 8452 leaves 23 h 55 after KL 1292 arrives on the timetable: more than half a day, so not a connection we count.